{"product_id":"mc-tdidi2-51304441-175-digital-input-module-honeywell","title":"MC-TDIDI2 51304441-175 Digital Input Module | Honeywell","description":"\u003cp\u003eConfigured for high-density discrete signal acquisition in Honeywell DCS environments, the \u003cstrong\u003eHoneywell 51304441-175\u003c\/strong\u003e (\u003cstrong\u003eMC-TDIDI2\u003c\/strong\u003e Digital Input Module) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eMC-TDIDI2 51304441-175\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePowered via 24 VDC I\/O backplane bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e32 Independent Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type\u003c\/td\u003e\n\u003ctd\u003eDiscrete \/ Dry Contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Integration\u003c\/td\u003e\n\u003ctd\u003eHoneywell TDC 3000 \/ Experion PKS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel Isolation \u0026amp; Process Control Integration\u003c\/h3\u003e\n\u003cp\u003eThe MC-TDIDI2 interfaces 32 discrete digital input channels, capturing field state changes from limit switches, proximity sensors, and auxiliary contacts. Designed for integration within 4-20 mA HART loop protocol and digital DCS environments, the board features channel-to-channel isolation and hardware debouncing filters. This isolation barrier rejects electromagnetic noise and common-mode transients, preventing voltage drops or long-distance wiring noise from corrupting real-time sequence logic execution.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What power source supplies the field contact sensing voltage for the MC-TDIDI2?\u003c\/p\u003e\n\u003cp\u003eA: The module utilizes the system 24 VDC bus interface to drive wet and dry contact sensing loops through the field termination assembly.\u003c\/p\u003e\n\u003cp\u003eQ: How does the MC-TDIDI2 suppress field wiring noise and contact chatter?\u003c\/p\u003e\n\u003cp\u003eA: Integrated active RC filtering hardware debounces contact transitions and rejects electromagnetic interference across long cable runs.\u003c\/p\u003e\n\u003cp\u003eQ: Is the MC-TDIDI2 compatible with both TDC 3000 and Experion PKS architectures?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the 51304441-175 assembly connects directly to standard Honeywell I\/O link racks across both platform generations.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower down the I\/O rack backplane and isolate connected field contacts before inserting the MC-TDIDI2 module into its slot.\u003c\/li\u003e\n\u003cli\u003eVerify that field wiring conductors are stripped to length and secured tightly into compression terminals to eliminate high-vibration contact faults.\u003c\/li\u003e\n\u003cli\u003eKeep discrete signal cables physically segregated from high-voltage AC motor lines inside cabinet wire ducts.\u003c\/li\u003e\n\u003cli\u003eGround all cable shields at a single central cabinet ground bus to prevent ground loops from interfering with 24 VDC logic thresholds.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52393142124840,"sku":"MC-TDIDI2 51304441-175","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/6266\/2184\/files\/MC-TDIDI251304441-175.png?v=1789550225","url":"https:\/\/www.powerdcs.com\/products\/mc-tdidi2-51304441-175-digital-input-module-honeywell","provider":"Power DCS Parts Limited","version":"1.0","type":"link"}